Folding sewing-machine table.



No. 734,190. PATENTED JULY '21, 1903. A. MORLEY.

FOLDING SEWING MACHINE TABLE.

APPLICATION rum) JUNE], 1901.

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PATENTED JULY 21, 1903.

A. MORLEY.

FOLDING SEWING MACHINE TABLE.

APPLIOATION FILED JUNE 7, 1901.

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flle i ()[OTZQ Wrzewsw No. 734,190. PATENTED JULY 21, 1903. A. MORLEY.FOLDING SEWING MACHINE TABLE.

APPLICATION FILED JUNE 7, 1901.

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vated ready for use.

4 is a detail of the door connection.

UNITED STATES iatented july 2i,

PATENT OFFICE.

ALBERT MORLEY, OF CHICAGO, InLINois, AssIGNoR To STEPHEN M; SUTHERLAND,TRUSTEE, OF CHICAGO, ILLINOIS.

'FOLD!NG SEWING-MACHINE TABLE.

SPECIFICATION forming part of Letters Patent No. 734,190, dated.- July21, 1903.

Application filed June '7, 1901- Serial No. 63,554. (No model.)

.To all whom 232% may concern.-

Be it known that I, ALBERT MORLEY, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Folding Sewing-MachineTables, of which the followingis a specification.

My invention relates to folding sewing-machine tables, and has for itsobject to provide certain improvements relating to such devices morespecifically set out in the accompanying drawings, wherein- Figure l isa front elevation with parts broken away of a folding sewing machinestand, the sewing-machine head being ele- Fig. 2 is a similar view withthe sewing-machine head folded out of use, the doors closed, and partsshown in dotted lines. Fig. 3 is a detail rear view. Fig. Fig. 5 is abottom view of the movable head-stand in its upper position. Fig. 6 is adetail of a bearing. Figs. 7 and 8 are detail cross-sections of thefolding front doors. Figs. 9 and 10 are modifications of the operatingmechanism.

Like parts are indicated by the same letters in all the figures. v

A is a sewing-machine head on the movable base composed of the two parts13 B. G is the fixed table; D, the folding table, which folding table,as shown in Fig. 3, is connected by the link D with the arm D on theshaft D and is hinged at D to the fixed table 0, which rests upon thetop D ofthe stand or frame D The shaft D is mounted in the backboard Dwhich forms part of the stand or frame, and on its inner end is providedwith the arm E, which carries at its outer enda loosely-pivoted block E,whence upwardly pass the chains E Each of these chains passes over anidler E and down to make connection with an arm E projecting from orforming part of a loop E pivoted at E and passing under the base B, towhich itis held, but so as to move therealong by the keeper E Some ofthese parts are shown more in detail in Fig. 5. The lower base portionBis slotted at its ends E E so as to slide upon the vertical guides EE", which are cut out at acertain point to permit the longitudinal partof the loops F. to pass therethrough.

- wardly.

wardly.

So much of the device as I have now described operates as follows: Whenthe leaf or hinge table D is moved upon its hinge D it is evident thatthe shaft D will be rotated and the arm E be forced upwardly or down- Ifforced upwardly, starting from the position shown in Fig. 1, it is clearthat the chains E IE will be slackened and the weight of thesewing-machine head or of any pressure which may be applied to thebaseplates B B will cause them to move down- The loops E E moving upontheir pivots E and sliding in the keepers E thus cause thesewing-machine head to be held in a level position, but permit it todescend until the parts are in the position indicated in Fig. 2.

It will of course be understood that these structures and devices shownmay be greatly altered in form and shape and method of attaching one toanother without departing from the spirit of my invention.

What I have called the loop E is, in fact, simply a series of arms andparts whereby there is a fixed pivoted connection to the frame, asliding operative connection with the movable machine-head base, and acontrolling connection with the operative mechanism.

The door or doorsat the front of the machine are intended to be closedwhen the machine-head is down and open when it is up.

F is a fixed portion at the side of the front of the machine,and F asimilar portion at the top of the front of the machine.

F is a door-section hinged to the part F at F and F is a like sectionhinged to the part F at F F is a pin in the top and at the forward edgeof the section F and this pin is adapted to travel in the groove Fformed in the lower edge of the part F. As illustrated in Fig. 4, thismay or may not be used; but when used the folding doors can be easilybrought into the position shown in Fig. 7, when the machine-head israised. When the pin'is not used, the parts can be broughtinto theposition shown in Fig. 8; v

The hinging of the loop E should be ad.- j ustable. In Fig. 6 I haveshown a detail of the means by which this can be accomplished.

The pivot part E is provided with the two slots G G, whereby the pivotpart E can be adjusted and secured in any desired position, and it isbent outwardly, as indicated in the drawings, to receive and form thebearing for the loop.

It is sometimes desirable to lock the machine-head in position eitherwhen lowered or when raised, and this I may accomplish by means of thedevices illustrated in Figs. 5 and 2. J J are bars each provided withthe slot J J, through which projects the shank of a fixed screw J J, thebar in each case being held in position by the head of the screw, whilefree to slide thereon from one end to the other of the slot. These twobars are pivoted together and secured to a handle J and are providedeach with an upturned end J", adapted each to bear against one portionof one loop \Vhen the lock is outof operative position, as indicated bythe dotted lines in Fig. 5, the parts are free to move up or down; butwhen they have reached the limit of their excursionin either-directionby means of the handle J the bars may be manipulated so as to take theposition indicated in full lines in Fig. 5, whereupon the parts aresecurely locked from movement, and thus the sewing-machine head may belocked at either extremity of its vertical excursion. In doing this ofcourse it will be evident that the parts must be properly proportioned,so that the motion which looks at one end will look at the other if theprecise formal construction shown by me is retained; but it is obviousthat very material changes in this construction can be made withoutdeparting from the spirit of my invention. The operative parts of myinvention are likewise capable of great variation. It is, in fact, onlynecessary that the movement of the short shaft be communicated to theloops, and this may be done, as indicated fully, by the chains, idlers,and suitable connecting parts or by a system of levers, from which thechains may be excluded, as indicated in Fig. 9, or by a cam and levers,as indicated in Fig. 10.

Referring to Fig. 9, in lieu of the link E, I employ two links K K, eachconnected with a lever K, pivoted at K to the backboard D and providedat its farther end with a long slot K in which moves the pivoted pin Kor a portion formed on the loop E and the operation, of course, issubstantially the same as with the other operating mechanism. The twopositions as shown by the full and the dotted lines, Fig. 10, present afurther modification in which the shaft D is placed centrally in theboard D and provided with the cam L, which engages the upper areshapedends L L of the lever L L which are pivoted to the backboard D at UL andwhich are slotted at L to receive the pivotpins on the loops E, asbefore. These two modifications of the operative mechanism areillustrated simply to show that the result can be accomplished in adifferent way from that illustrated before.

The table as it descends should be resisted by some counteractingspring, weight, or the like, and I have shown counteracting springs.

N N are springs attached to the sides of the frame and coiled at N andadapted to engage the loop portion at N. These springs are so formedthat they tend to force the machine head and base upwardly. 0 is aspiral spring attached at one end to the arm E and at the other to theframework D. It tends to pull such arm down, and thus to resist thedescending action of the head. P is a further spring acting against thearm D and coiled about the shaft D which tends to move these parts inthe same direction. These several springs may be, some or all of them,dispensed with and other devices may be substituted that tend to resistthe downward movement of the head, to keep it from falling whenreleased, and to assist in raisin}: III.

I claim 1. In a folding sewing-machine table, the combination of a fixedframe with a movable table, two supports which have each a pivotedconnection with the fixed sewing-machine frame and a movable connectionwith the movable table, and means for operating said supports on theirpivots to cause them to raise the movable table, said means including afolding leaf, a shaft connected with said leaf and a connection from theshaft to the supports.

2. In a folding sewing-machine table, the combination of a movable tablewith a sewing-machine frame, two supports which have a pivotedconnection with the fixed sewingmachine frame and a movable connectionwith the movable table, and means for operating said supports on theirpivots to cause them to raise the movable table, said means including afolding leaf, a shaft connected with said leaf and a connection from theshaft to the supports and idler-pulleys, said connection includingchains which travel over such idler-pulleys.

3. In a folding sewing-machine table, the combination of a movable tablewith a fixed frame or stand, two supports pivoted upon the fixed frameand having movable connections with the movable table, a rotatable partand connections from said supports to same, and means for rotating suchpart to raise and lower the movable table.

4. In a folding sewing-machine table, the combination of a movable tablewith a fixed frame or stand, supports pivoted upon the fixed frame andhaving movable connections with the movable table, arotatable part andconnections from said supports to same, and means for rotating such partto raise and lower the movable table and idler-pulleys, said connectionsincluding chains which travel over idler-pulleys.

5. In a folding sewing-machine table, the

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combination of a movable table with a fixed frame or stand, supportspivoted upon the fixed frame and having movable connections with themovable table, a rotatable part and connections from said supports tosame, and means forrotating such part to raise and lower the movable,table and idler-pulleys, said connections including chains which travelover idler-pulleys and an arm which makes the connection from the chainsto the rotatable part.

6.' In a folding sewing-machine table, the combination of a movabletable with a fixed frame or stand, two supports pivoted upon the fixedframe and having movable connections with the movable table, a rotatablepart and connections from said supports to same, and means for rotatingsuch part to raise and lower the movable table, said means including afolding table-leaf and'connections therefrom to the rotatable part.

7. In a folding sewing-machine table, the combination of a movable tablewith a fixed stand, and loop-like supports, having each a long slidingbearing on the movable table toward one end and pivoted each on thestand.

8. In a folding sewing-machine table, the combination of a movable tablewith a fixed stand, and loop-like supports, having each a long slidingbearing on the movable table toward one end and pivoted each on thestand, said loops having projecting arms, and means for moving said armsto raise and lower the movable table.

9. In a folding sewing-machine table, the combination of a movable tablewith a fixed stand, and loop-like supports, having each a long slidingbearing on the movable table toward one end and pivoted each on thestand,

and vertical guides for the movable table to keep it from movinghorizontally.

10. In a folding sewing-machine table, the combination of a movabletable with a fixed stand, and loop-like supports, having each a longsliding bearing on the movable table toward one end and pivoted each onthe stand, said loops having projecting arms, and means for moving saidarms to raise and lower the movable table, said means including chainsand pulleys over which they pass and which are drawn upon or released tooperate the loop-like supports.

ALBERT MORLEY.

Witnesses:

FANNY B. FAY, HOMER L. KRAFT.

